Edwin a



(No ModeL; 2 Sheets-Sheet 1.

E. A. MAY.

VENTILATOR 0R VENTILATING RIDGING FOR ROOPS 0P BUILDINGS. No. 595,960. Patented De0.21,1897.

(No Model.) 2 Sheets-- Sheet 2,

E. A. MAY. I VENTILATOR 0R VENTILATING RIDGING FOR ROOPSOF BUILDINGS. No. 595,960.

Patented Deo.21,1897.

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UNITED STATES PATENT OFFICE.

EDWVIN A. .MAY, OF TROY, NEW YORK, ASSIGNOR TO THE GLOBE VENTTLATOR COMPANY, OF. SAME PLACE.

VENTILATOR 0R VENTILATING-RIDGING FOR ROOFS OF BUILDINGS.

SPECIFICATION forming part of Letters Patent No. 595,960, dated December 21, 1897.

Application filed March 25, 1897. Serial No. 629,258. (No model.)

To all whom, it may concern.-

Be it known that I, EDWIN A. MA a citizen of the United States, residing at Troy, in the county of Rensselaer and State of New York, have invented certain new and useful Improvements in Ventilators or Ventilating- Ridging for Roofs of Buildings; and I do hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in Ventilators or ventilating-ridging intended to be applied to the roof of a building for the purpose of ventilating the upper portion thereof; and it consists of certain novel features hereinafter described and claimed.

My invention will be understood by reference to the accompanying drawings, wherein corresponding parts are indicated by the same letters throughout the several views.

Figure 1 represents a section through one form of ventilator or ventilating-ridging and the upper portion or ridge of the roof to which it is applied, the section through the ventilator being along the line 1 1 of Fig. 2. Fig. 2 represents a side elevation of the ventilator shown in Fig. 1. Figs. 3, 4, 5, and 6 each represent a vertical transverse section of a different form of my ventilator, the section shown in Fig. 6 being taken along the line 6 6 in Fig. 7 and lookingin thedirection of the arrows; and Fig. 7 is a partial vertical longitudinal section taken on the line 7 7 in Fig. 6.

The ventilator is intended as a ridging to extend the full length of the comb of a roof and is intended to allow the exit of air from the building, but at the same timeto provide suitable protection against the beating in of rain or snow from without.

In Fig. 1, A represents the sheathing of a roof, which is mounted'on the rafters A A between which latter is held the ridge-pole A. This sheathing should preferably ter1ninate at its upper edge in longitudinal stringers a a, somewhat greater in thickness than the sheathing proper, and over these stringers may be placed the lower curved edges of the inclined base-plates B B of the ventilator or ventilating-rid gin g B. These inclined plates B B may be nailed or otherwise secured to the stringers a a, or the curved lower edges b b may be secured to the stringers a a or to the sheathing in any convenient way.

The upper member B of the ventilator is connected to the lower member by means of struts B which leave a sufficient space between the sides of the lower member and the bent-over portions 5 b of the upper member. The upper ends of the side plates B B of the lower member are curved over outwardly, as at b b, so as to render it practically impossible for rain or snow to beat from the sides of the roof in through the ventilator.

The upper member of the ventilator may be of any suitable desired shape in cross-sectionsuch, for instance, as shown in Fig. 1, where the sides B B thereof are shown as made zigzag, having fiat faces 19 b 17 b and b 19 and terminating in the apex b -or the sides of the upper member may be made perfectly flat, as shown in Figs. 3, 5, and 6, or rounded'more orless, as shown in Fig. 4:.

The ends of the ventilator or ventilatingridging are closed with two vertical plates B whose upper portions are made somewhat in the shape of an arrow-head or other appropriate shape to correspond with the shape of the upper member, the wing parts b b projecting to or somewhat beyond the edges of the curved flanges or lips 17 b and the lower portion 1) extending downward as far as the lower edges 1) b of the base-plates B B, as seen most clearly in Figs. 3 to 6 andas indicated by the dotted lines in Fig. 1.

In Figs. 3-, 4:, and 5 I have shown slightlydiiferent forms of my ventilator, which, however, possess the same essential features as are contained in the form shown in Figs. 1 and 2.

Fig. 3 shows the sides oftheupper member made flat and converging to the apex b and the lower member as having flat base-plates B B, converging toward their upper edges, but provided at said edges with diverging portions b b upon the upper extremities of which are formed the curved flanges or lips I) b.

Fig. 4 shows a ventilator of a form similar to that shown in Fig. 3, with theexception that the upper member is rounded. in crosssection instead of having flat converging sides, as shown in Fig. 3.

Fig. 5 shows a further form, in which the upper member is similar to that shown in Fig. 3, but much smaller, and the lower member has zigzag sides somewhat similar to the sides of the upper member of the ventilator shown in Figs. 1 and 2, which terminate at their upper edges in curved flanges or lips I) b, as above described. I

In Figs. 6 and 7 I have shown afurther form of ventilator, similar in shape and exterior appearance to that shown in Fig. 5, but having the base member provided with side plates united at their upper edges and provided along the apex with a succession of openings 0 therethrough for the passage of air. The upper member is mounted by means of struts B upon a pair of curved longitudinal strips or flanges b 1'), corresponding to the curved flanges or lips shown in the preceding figures, secured to the upper portion of the base member along either side of the ridge thereof, as seen most clearly in Fig. 6.

The openings 0 in the base member of the ventilator shown in Figs. 6 and 7 may be closed by means of a slide 0, perforated to correspond with said openings 0 and mounted in cleats secured along the inner sides of the walls of the base member, as seen most clearly in Fig. 7.

Any suitable means may be provided for opening and closing the slide 0, such as a rope or cord 0, having two ends passing over a double set of pulleys c and o and acommon pulley c and having its ends leading to some point within convenient reach of a person in some portion of the building.

It will be obvious that my improved ventilator or ventilating-ridging will be especially efficient at night or at any time whenever the outer air is cooler than the air in the house, for the warm air in the house will strike the metallic conducting sides of the ventilator and will be partially cooled and deflected down, escaping past the struts B and thus the natural tendency of the air to flow out past these struts will be augmented. This action, however, would not be sufficient to overcome the normal draft upward of the hot air in the house when the exterior atmosphere was hotter than that in the house.

It will be obvious that this improved Ventilating-ridging may be extended only a part of the length of the comb of the roof or may be made to extend the entire length of the comb, as may be desired.

Besides serving the functional objects for which it is intended, it will be seen that my ventilator will give an improved artistic effect to the comb of the roof.

Having thus described myinvention, what Iclaim, and desire to secure by Letters Patent of the United States, is-

1. In a ventilating-ridging, the combination with the side base-plates B B having inwardly-curved lower edges 79 b and outwardlycurved flanges I) Z) at their upper edges; and open between said flanges; of an upper member or cover having sloping sides B B provided with inwardly and downwardly curved lower edges b 12 extending over said flanges b b 011 the said plates B B, and mounted upon struts B said struts being mounted upon said plates B B; and end plates B B secured upon the ends of said ridging, and closing said ends, substantially as described.

2. In a ventilating-ridging, the combination with the side base-plates B B having inwardly-cu rved lower edges b b and outwardlycurved flanges b b, at their upper edges; with openings between said flanges; guides mounted upon the under side of said baseplates; an inverted-V-shaped slide mounted in said guides and adapted to open or close said openings; and means for operating said slide; of an upper member or cover having sloping sides B B provided with inwardly and downwardly .curved lower edges 12 6 extending over said flanges b b on the said plates B B, and mounted upon struts B said struts being mounted upon said plates B B; and end plates B B secured upon the ends of said ridging, and closing said ends, substantially as described.

3. In a ventilating-ridging, the combination of the stringers a projecting above the plane of the roof, the side base-plates B B having inwardly-curved lower edges 1) b and outwardly-curved flanges b" b at their upper edges; and open between said flanges; of an upper member or cover. having sloping sides B B provided with inwardly and downwardly curved edges b b extending over said flanges b b on the said plates B B, and mounted upon struts B said struts being mounted upon said plates B B; and end plates B 13 secured upon the ends of said ridging, and closing said ends, substantially as described.

4. In a ventilating-ridging, the combination of the stringers a projecting above the plane of the roof, the side base-plates B B having inwardly-curved lower edges Z) Z) and outwardly-curved flanges b b at their upper edges; with openings between said flanges; guides mounted upon the under side of said base plates; an inverted V shaped slide mounted in said guides and adapted to open or close said openings; and means for operating said slide; of an upper member or cover having sloping sides B B provided with inwardly and downwardly curved lower edges b Z7 extending over said flanges b b on the said plates B B, and mounted upon struts B said struts being mounted upon said plates B B; and end plates B B secured upon the ends of said ridging, and closing said ends,

substantially as described. In testimony whereof I aflix my signature in presence of two witnesses.

EDWIN A. MAY. l/Vitnessesz LEON B. VINETT, F. W. CRAWFORD. 

